winslow



(No Model.)

. Patented lan. 3l, |899.

w. H. & F. A.v wn'esLow &. J. L. KAM..

SHELF BRACKET.

(Application led Jan. 12. 1898.',

whim! UNTTEE STATES PATENT BEIGE.

IVILLIAM II. VINSLOV, FRANCIS A. VINSLOXUANDVJACKSON L. KAIL, OFCHICAGO, ILLINOIS, ASSIGNORS TO THE WIN SLOIV BROTHERS COMPANY,

OF SAME PLACE.

SHELF-BRACKET.

SPECIFICATION forming part of Letters Patent No. 618,551, dated January31, 1899.

Application iiled January l2. 1898. Serial No. 666,401. (No model.)

To @ZZ whom it may concern:

Be it known that we, VILLIAM H. VINS- Low, FRANcIS A. WINsLoW, andJACKSON L. KAIL,citizens of the United States of America,

residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Shelf-Brackets, of whichthe following is a specification.

Our invention relates to certain improve- 1o ments in shelf-bracketsdesigned for the purpose of cheapening brackets of the class which areintended to support shelves in stacks or tiers, as is customary in themore recentlyconstructed libraries.

The invention consists in certain novel features of construction, whichwill be fully described and claimed below.

In the drawings, Figure 1 is a side elevation of a bracket andsupporting-bar. Fig.

2o 2 is a top plan of the same, showing the bar in horizontal section inline 2 2. Fig. 3 is a broken view of a horizontal section in line 3 8,looking downward. Fig. .4 is a broken edge view of the bracket, lookingtoward the edge z 5 which engages with the supporting-bar; and

Fig. 5 is a rear view of abiting-pawl, the function of which will behereinafter set forth.

The supporting-barA here shown is an upright iiat metal strip, and thebracket Bis 3o preferablya iiat piece of sheet metal cut and bent toform the necessary lugs and hooks to receive the shelf and engage thesupportingbar. As here shown, three tongues b b' b2 are stamped inwardto carry the shelf. Two

3 5 other tongues b3 b4 upon the edge of the bracket are bent outwardand forward upon themselves to form hooks adapted to engage the rearedge of the supporting-bar. Upon the face of the' bracket a biting-lngor pawl C is pivoted 'at c and has a sharp corner c', adapted to biteinto the forward edge of the supporting-bar, and an adjacent flange c2,adapted to extend alongside of said bar upon the side opposite from theback bracket and prevent said bracket from swinging inward before theshelves are in position. Adjacent to this pawl two tongues b5 h6 arestruck outward from the sheet metal and between them is held a nut D, inwhich is threaded 5o a screw E, bearing upon the pawl C.` By

means of this screw the pawl maybe adjusted toward or from thesupporting-bar, as may be desired, or said pawl may be jammed tightlyagainst the bar to secure the bracket against movement. When the pawl isso adj usted as 5 5 to slide loosely upon the bar, the bracket may beraised without resistance, and it may also be lowered if care is takento pull forward upon the lower portion of the bracket. If the bracket isreleased, however,the forward edge 6o will drop and the pawl will biteinto the supporting-bar and hold the bracket against downward movement.The advantage of this portion of the invention is due to the fact thatin adjusting the different shelves the pawls may be loosened and thebrackets raised or lowered, as desired, until all are in the properposition, during which time they will sustain themselves automatically.After this has been done the pawls maybe clamped tightly 7o to thesupporting-bars, preventing the displacement of the brackets by jarringor by accidental blows upon the forward edge.

We claim as new and desire to secure by Letters Patent- 75 l. Thecombination with a sheet-metal bracket provided with two adjacenttongues stamped up from the metal of said bracket, of a nut securedagainst lateral movement and rotation between said tongues and havingthreaded therein a clamping or adjusting screw; substantially asdescribed.

2. A bracket,B, having the hooked tongues, h3, b4, the pivotedbiting-pawl, C, the tongues, b5, h6, the nut, D, held between saidtongues and the screw, E, threaded in the nut and bearing against thepawl; substantially as described. l

3. The sheet-metal bracket, B, having a series of shelf-supportingtongues stamped 9o inward from the metal of the bracket, a series ofhooked tongues bent from the rear edge of the bracket, a pair ofadjacent tongues stamped up from the metal of the bracket, a nut heldbetween said adjacent tongues and a clamping or adjusting screw threadedin said nut; substantially as described.

4. A sheet-metal bracket having a series of shelf-supporting tonguesstamped inward from the metal thereof, a series of hooks bent rcooutward from the rear edge thereof, a bitingpawl pivoted to the facethereof, a pair of tongues stamped outward from the metal thereofadjacent to said pawl, a nut secured between said last-mentioned tonguesand a screw threaded in said nut adapted to bear upon said pawl;substantially as described.

5. The combination with an upright and a horizontal bracket adapted toengage one side of the same, of an approximately Vertical pawl pivotedto the bracket to swing against the opposite side of the upright, and ascrew mounted upon the bracket in position to-force suoh sWin ging ofthe pawl.

In Witness whereof We have hereunto set I5 our hands, at Chicago, in thecounty of Cook and State of Illinois, this 29th day of Deceniber, A. D.1897.

VILLIAM 1I. XVINSLOXV. FRANCIS A. VINSLOV. JACKSON L. KAIL. Vitnesses:

E. S. FECHHEIMER, CHAS. O. SHERVEY.

